title: Micro-profiles of activated sludge floc determined using microelectrodes.
mesh_terms: D000641:Ammonia / Q000032:analysis; D004566:Electrodes; D004784:Environmental Monitoring / Q000295:instrumentation; D005427:Flocculation; D009566:Nitrates / Q000032:analysis; D010100:Oxygen / Q000032:analysis / Q000737:chemistry; D012722:Sewage / Q000737:chemistry / Q000382:microbiology*; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D009566:Nitrates; D012722:Sewage; D000641:Ammonia; D010100:Oxygen